Python implementation of Stack

Author: OmkarPathak

data_structures/Stacks/Stack.py

@@ -0,0 +1,50 @@
+# Author: OMKAR PATHAK
+
+class Stack(object):
+    def __init__(self, limit = 10):
+        self.stack = []
+        self.limit = limit
+
+    # for printing the stack contents
+    def __str__(self):
+        return ' '.join([str(i) for i in self.stack])
+
+    # for pushing an element on to the stack
+    def push(self, data):
+        if len(self.stack) >= self.limit:
+            print('Stack Overflow')
+        else:
+            self.stack.append(data)
+
+    # for popping the uppermost element
+    def pop(self):
+        if len(self.stack) <= 0:
+            return -1
+        else:
+            return self.stack.pop()
+
+    # for peeking the top-most element of the stack
+    def peek(self):
+        if len(self.stack) <= 0:
+            return -1
+        else:
+            return self.stack[len(self.stack) - 1]
+
+    # to check if stack is empty
+    def isEmpty(self):
+        return self.stack == []
+
+    # for checking the size of stack
+    def size(self):
+        return len(self.stack)
+
+if __name__ == '__main__':
+    myStack = Stack()
+    for i in range(10):
+        myStack.push(i)
+    print(myStack)
+    myStack.pop()           # popping the top element
+    print(myStack)
+    myStack.peek()          # printing the top element
+    myStack.isEmpty()
+    myStack.size()